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dc.date.accessioned2017-08-02T11:56:09Z
dc.date.available2017-08-02T11:56:09Z
dc.date.created2017-07-31T15:57:09Z
dc.date.issued2017
dc.identifier.citationBrandrud, Marie Kristine Paun, Ovidiu Lorenzo, Maria Teresa Nordal, Inger Brysting, Anne Krag . RADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norway. Scientific Reports. 2017, 7
dc.identifier.urihttp://hdl.handle.net/10852/56752
dc.description.abstractSpeciation encompasses a continuum over time from freely interbreeding populations to reproductively isolated species. Along this process, ecotypes – the result of local adaptation – may be on the road to new species. We investigated whether three autotetraploid Cochlearia officinalis ecotypes, adapted to different habitats (beach, estuary, spring), are genetically differentiated and result from parallel ecotypic divergence in two distinct geographical regions. We obtained genetic data from thousands of single nucleotide polymorphisms (SNPs) from restriction-site associated DNA sequencing (RADseq) and from six microsatellite markers for 12 populations to assess genetic divergence at ecotypic, geographic and population level. The genetic patterns support differentiation among ecotypes as suggested by morphology and ecology. The data fit a scenario where the ancestral beach ecotype has recurrently and polytopically given rise to the estuary and spring ecotypes. Several ecologically-relevant loci with consistent non-random segregating patterns are identified across the recurrent origins, in particular around genes related to salt stress. Despite being ecologically distinct, the Cochlearia ecotypes still represent an early stage in the process of speciation, as reproductive isolation has not (yet) developed. A sequenced annotated genome is needed to specifically target candidate genes underlying local adaptation.en_US
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleRADseq provides evidence for parallel ecotypic divergence in the autotetraploid Cochlearia officinalis in Northern Norwayen_US
dc.typeJournal articleen_US
dc.creator.authorBrandrud, Marie Kristine
dc.creator.authorPaun, Ovidiu
dc.creator.authorLorenzo, Maria Teresa
dc.creator.authorNordal, Inger
dc.creator.authorBrysting, Anne Krag
cristin.unitcode185,15,29,0
cristin.unitnameInstitutt for biovitenskap
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.cristin1483517
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scientific Reports&rft.volume=7&rft.spage=&rft.date=2017
dc.identifier.jtitleScientific Reports
dc.identifier.volume7
dc.identifier.doihttp://dx.doi.org/10.1038/s41598-017-05794-z
dc.identifier.urnURN:NBN:no-59221
dc.type.documentTidsskriftartikkelen_US
dc.type.peerreviewedPeer reviewed
dc.source.issn2045-2322
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/56752/2/Brandrud%2Bet%2Bal.%2B2017.pdf
dc.type.versionPublishedVersion
cristin.articleid5573


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